The growth and tech-heavy Nasdaq 100 index is in something of a significant correction at the moment.After hitting new all-time highs early in July, the benchmark Invesco QQQ ETF (NASDAQ:QQQ) has already pulled back close to 10% from its recent peak.There are several reasons for this. Several key tech leaders, such as Amazon (NASDAQ:AMZN), posted disappointing earnings results. The momentum has turned to the downside in the all-important semiconductor sector. And investors appear to be worried about recent ...